African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12482

Full Length Research Paper

Comparative analysis of milt quality in the cultured and wild stocks of endangered Caspian brown trout, Salmo trutta caspius

Saeed Hajirezaee1*, Hojatollah Jafaryan2, Masoud Asghari3 Amin Golpour3 andBagher Mojazi Amiri1
1Department of Fisheries and Environmental Sciences, Faculty of Natural Resources, University of Tehran, Karaj, Iran. 2Gonbad higher education center, Gonbad, Iran 3Department of Fishery, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
Email: [email protected]

  •  Accepted: 25 February 2011
  •  Published: 04 April 2011

Abstract

The sperm motility characteristics (percentage of motile spermatozoa and duration of motility) and sperm production (spermatocrit, milt volume and sperm concentration) were measured in order to compare the milt quality between cultured and wild stocks of Caspian brown trout, Salmo trutta caspius. Our results showed that cultured brooders produce more dense milt than wild individuals. In contrast, the milt volume, percentage and duration of spermatozoa motility were higher in wild brooders than in cultured individuals. The aim of the present study was to assess the effect of captivity condition on milt quality of cultured males of Caspian brown trout.
 
Key words: Sperm density, sperm motility, Caspian brown trout.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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